@CNN: More than a century ago, Frank Bennett Fiske had a photography studio at Fort Yates, a US Army post in the middle of a North Dakota Indian reservation. He captured these rare historical photos of the Standing Rock Sioux. https://t.co/k6yQsXcZaS via @CNNPhotos https://t.co/easX6f6B8Y

@CNN: More than a century ago, Frank Bennett Fiske had a photography studio at Fort Yates, a US Army post in the middle of a North Dakota Indian reservation. He captured these rare historical photos of the Standing Rock Sioux. https://t.co/k6yQsXcZaS via @CNNPhotos https://t.co/easX6f6B8Y